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. 2024 Oct;33(5):e14156.
doi: 10.1111/jsr.14156. Epub 2024 Jan 29.

Insomnia symptoms and risk for atrial fibrillation - The HUNT study

Katalin Gémes  1 , Vegard Malmo  2   3 , Linn Beate Strand  4 , Hanne Ellekjær  5   6 , Jan Pål Loennechen  2   3 , Imre Janszky  4   7 , Lars Erik Laugsand  2   8
Affiliations

Insomnia symptoms and risk for atrial fibrillation - The HUNT study

Katalin Gémes et al. J Sleep Res. 2024 Oct.

Abstract

Studies on the effect of insomnia on atrial fibrillation risk in the general population are limited, therefore we investigated the association between insomnia and the risk of atrial fibrillation in a large-scale population-based study with valid atrial fibrillation measure. A total of 33,983 participants (55% women) reported their insomnia symptoms in the third wave of the HUNT study (between 2006 and 2008) in Norway, and they were followed for their first atrial fibrillation diagnosis until 2020 using hospital registers. Atrial fibrillation diagnoses were validated by physicians based on medical records and electrocardiograms. Insomnia symptoms were assessed by four questions, and analysed both individually and as cumulative symptoms. Cox regression, adjusted for age, sex, social and marital status, working in shiftwork, alcohol consumption, smoking, physical activity, body mass index, systolic blood pressure, and symptoms of anxiety and depression, was conducted. Overall, 1592 atrial fibrillation cases were identified during the follow-up and 31.6% of individuals reported at least one insomnia symptom. In our analysis, we did not detect meaningful associations between insomnia symptoms and the risk of atrial fibrillation. In conclusion, in this population there was no evidence for an association between insomnia symptoms and the risk of subsequent atrial fibrillation.

Keywords: atrial fibrillation; insomnia; prospective cohort study; the HUNT study.

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